Lobot:

          Lobot is the son of a slaver. he arrived on Bespin after escaping his captors. There he was forced to steal to survive. He was soon caught and sentenced. Instead of a prison sentence the Baroness Administrator suggested that he become the cities first "cyborg liason officer" in control with the city's computers which ran everything until he served out his sentence.
          To communicate with the city's central computer they attached a computer bracket to his bald head, which also increased his intelligence. He remained even after fulfilling his sentence there and even helped Lando Calrissian win Cloud City from a Draconian Administrator in a game of sabacc.
          Lobot stayed behind after Calrissian and some Rebel Alliance friends escaped the clutches of Sarth Vader, who had set a trap to capture Luke Skywalker there on Cloud City. Calrissian later returned only to be attacked by Lobot, who had been damaged by rebelling Ugnaughts. Calrissian repaired the damage and Lobot was then able to disarm some bombs that were planted by the Ugnaughts there on Cloud City. The two then teamed up with the Ugnaughts to overtake Cloud City from the Imperial forces.
          Years later Lobot would become Calrissians aid on GemDiver Station which orbits around Yavin.